Double-crosslinked network design for self-healing, highly stretchable and resilient polymer hydrogels

Abstract

A novel type of chemically and physically double-crosslinked network (CPDN) polymer hydrogels with excellent self-healing and mechanical properties were prepared and investigated.

Self-healing zwitterionic sulfobetaine nanocomposite hydrogels with good mechanical properties

“…Rod-shaped hydrogel samples (5.5 mm in diameter and 60.0 mm in length) were used for the measurement of tensile mechanical properties according to our previous work. 40 The tension tests were carried out using a universal tensile machine (PST, Am Cells Electrion Weighing Company, USA) at ambient temperature. The cross-head speeds of the tensile measurements were 50 mm min À1 .…”

Highly tough and rapid self-healing dual-physical crosslinking poly(DMAA-co-AM) hydrogel

“…63,64 Among various non-covalent bonding, hydrophobic bonding is the most common for bulk self-healing materials, thus playing a dominant role in forming large biological systems. [65][66][67] Therefore, applying hydrophobic interactions to construct robust hydrogels with superior self-healing ability and remarkable mechanical properties is highly desirable. In particular, Okay and co-workers 47 presented a simple strategy to create strong hydrophobic interactions by incorporating hydrophobic chains into hydrophilic polymer network chains, resulting in self-healing hydrogels.…”

A simple coordination strategy for preparing a complex hydrophobic association hydrogel

“…Recent advances in synthesis strategies have allowed researchers to design hydrogels with various structures and functions. Examples of these strategies include the creation of covalent bonds, hydrogen bonds, host–guest molecules, hydrophobic effects, metal‐coordination interactions, double networks, and multicomponent crosslinking . Particularly, hydrophobic association hydrogels (HA gels) have been widely investigated because of their reversible, associative structure and excellent mechanical properties.…”